Question

. 26. A vertical cylinder closed at both ends is divided into two parts by a
frictionless piston, each part containing one mole of air. At temperature 300 K,
the volume of the upper part is four times than that of the lower part. At what
temperature will the volume of the upper part be three times than that of the
lower part?​

Answer 1

Answer: 450K

Explanation:

As you can see in both the cases the piston is in equilibrium. Hence you just have to calculate the pressures from both sides in first case and the second case respectively. Equate both of them to mg/A that is the pressure in both the cases equal to the pressure exerted by the gas and hence you will get your answer